Risk of Acute MI After the Death of a Significant Person in One's Life (2012)
ahajournals.org
ahajournals.org
Sure it can be changed through tactics like this, but I don't think "heart attack" is too imprecise for use...
I'd love to learn more about these ideas and the extent to which it is true. It definitely make some sense to me, but I still have a bit of skepticism. Anecdotally, I did feel less anxious than usual in the days after I first watched the video.
In a similar vein, pill bottles labeled "placebo" are helpful treatments [0], which goes further to show our minds and bodies are very interconnected. https://time.com/5375724/placebo-bill-health-problems/